Shock absorber



W. G. STRUTHERS Feb l2 1924.

SHOCK ABsoRBER Filed NOV. 20. 1922 FIR heb.. i12, ld.

Lm G. SITRUTBERS, 0

mrs

F SEATTLE, wasmnoron.

encon assonanza Application filed November 2 To ail whom it may concern: I

Be it known that I, WILLIAM G. STRUTH- nns a citizen of the United States, residing seattle, in the county of King and State of vi/Vashin'c'ton, have invented certain new and useful Q)Improvements in Shock Absorbers, of which the following is a specification.

This invention relates to shock absorbers and snubbers for use on motor vehicles and is in the nature of improvements to the devices shown and described in my Patent Number 1,437,838, dated December 5, 1922.

The object of the present invention is to simplify and improve the efficiency of this type ci devices.

The invention consists in the novel construction, arrangement and combination of parte hereinafter described'and claimed.

in the accompanying drawing,-

Figure 1 is a longitudinal vertical sec-tion through the rear axle housing and a bodyl supporting spring of an automobile having appiied thereto an embodiment of my invention. shownin side elevation. Fig. 2 is a in iongitudinal vertical section of the ion attached to the bodyfsupporting said section being taken substan-v "iy tin'ough broken line 57h-2 of Fig. 3.'V Figs. 3 and 4i are transversefsectional views through 3--3 and L1-4 of Fig. 2. Fig. 5 is a perspective View of one'of the jawmembers shown in Figs. 2 and 3. Fig. 6 is a detail transverse sectional view through the rear axle housin A and in rear elevation a portion ci the snn ber strap connection attached f tiiereto. i. ln said drawing, for illustrative purposes" .the invention is shown applied to the spring 5st or about the position of the latters con# necion to the vehicles frame or body, not shown, and to the axle housing 6 at the rear end. of an automobile, although it is tof, be understood that the invention is intended to be used also in connection with a front axle,

in carrying out the invention I provide a body 7 comprising a horizontally disposed cylindrical portion 8, hereinafter designated es the drum extending axially fromfa disk element 9 provided with a bracket element l0 whereby said body is'secured as by means of a bolt 11 to a support aiorded by the spring i. o

The body 7 is also provided with an arbor element 12 disposed axially from the drum 8 and serves as e support for a cylindrical shell member 13 having' in the end thereof o, 192e.v serial no. eccoli.

a, polygonal hole to receive a correspondingly shaped portion 14 ci said arbor 'for connectingthe shell 'member against rotation thereto. 15 represents a bolt engaging in a screw threaded hole in said arbor for coupling the shell therewith.

. Mounted for rotation on the nrbor12 is a vhub element 16 of a yoke 17 provided with parallel arm elements 18 disposed at opposite sides of the drum 8 sind between the opposingr ends of two concave jaw members 19 which seat upon the periphery of the drum,

The jaw members 19 are preferably hushed with respect to scid drum by means 7 of liners 2() of asbestos or other suitable material of high frictional characteristics. Se cured as by means of screws y21. to one of the yoke arms 18 is the end of c flexible metal band 22 which constitutes en extension oi a n flexible strap 221 which, after being coiled about the yoke. arms 18 end the jaw ,members 19, Aas shown in 2 an is connected.. as by links 23 and bo' W1 6 as shown in Figs ing, ses Fig. d, leb of said yoke as by engaging; i other end secui 'to the p eral wail 2i' of said shell as by means ci' screw 30 represents a @over or guard piatc sccured to the body deluge and the sheli for protecting the jaws. drum, etc., :troni dirt or dust.

The spring 25 serves through the .me hun of the yoke arms 18 which act circus.- tially of the drum against an end or c of the jaws 19 to push the same a cnabfnanl tially tangentiai direction from the dream, thereby permitting rotary motion to the iatter to accommodate up-anddown movements of the vehicle body, subject cc the action of the vehicle sprin'vs and with .respect to the wheel axle and cbviate siecle its I ter are. distributed sul'istautially yabout the entire circumference of the stub shaft.

A further advantage of the present invention is that the'spring,r controlled yoke affords a rapid release of the jaws with respect to the shaft when the cable is not sub;- jected to abnormal tension as under ordinary road conditions.

What claim, is Y l. ln a shock absorber, the combination of a stationary drum, two opposed jaws revolubly mounted upon said drum.y a rotatableyoke member having arm elements extending into the spaces between said jaws at diametrieally opposite sides of the drum. va flexible member coiled. about said jaws and having one of its ends Connected to said "v, yoke` and' a spring connected* to said yoke nected yto said yoke for rotating .the same to retract said lexible member when the.V

tension on the same is relieved.

3. In a shock absorber, the. combination of zrstatiouary drum. friction jaws revolubly mounted thereon. a rotatable yoke having arm elements interposed between said jaws,

a flexible member connected to one of said arm elements'and coiled about both of said arm elements and'said jaws to cause the latter when pulled outwardly to grip the drum,

' and a spring operatively connecting: said -dr1unandthe ,yolrem whereby lsaidyoke 1A 40 rotate-dito retract said fieiblerie'mber whe the tension on the same is relieved. /f

4. In a shock absorber. the-combination ot a stationary drum having a shaft ext/endingl axially therefrom. jaws mounted upon 'said drum. a yoke rotatable upon said.y shaft and revolubly Connected with said jaws. a flexible member Connected to said yoke and eoiledabout said jaws` a shell rigidly se- (".uedto` said shaft. and a Coil spring haring its erds eonnected to said shell and the yoke for rerolrigg the jaws for retracting said flexible me ber `when the tension thereon is relieved.l i

'Signed at Seattle` lVashington, this 3rd 55 day of November. 1922. l VILLI'A M G. STRUTHERS.

lVitnesses PIERRE BARNES, MARGARET G. SUrPLE. 

